chris

How to Configure Logrotate on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Logrotate on Debian 10

Introduction Deploying configure logrotate on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure Debian 10 Buster […]

Read more
How to Use Bacula for Enterprise Backup on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Use Bacula for Enterprise Backup on RHEL 8

Bacula is a mature, enterprise-class open-source backup solution that supports tape libraries, disk-based storage, and remote clients across heterogeneous environments. Its client-server architecture separates the Director (job scheduler and catalog manager), Storage Daemon (tape or file I/O), and File Daemon (agent running on each backed-up host), allowing you to scale from a single server to […]

Read more
How to Set Up Cron Jobs and Scheduled Tasks on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up Cron Jobs and Scheduled Tasks on Debian 10

Introduction Debian 10 Buster is built around the ethos of stability and free software. Setting up set up cron jobs and scheduled tasks on debian 10 on Buster leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Buster freeze. Follow each […]

Read more
How to Configure DRBD for High-Availability Storage on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure DRBD for High-Availability Storage on RHEL 8

DRBD (Distributed Replicated Block Device) provides synchronous, block-level replication between two Linux servers, making it a foundational technology for high-availability storage clusters. Often described as “RAID 1 over the network,” DRBD mirrors every write to both nodes in real time, so either node can take over if the other fails. On RHEL 8, DRBD is […]

Read more
How to Configure the APT Package Manager on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure the APT Package Manager on Debian 10

Introduction Deploying configure the apt package manager on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites You […]

Read more
How to Manage Disk Encryption with LUKS and cryptsetup on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Manage Disk Encryption with LUKS and cryptsetup on RHEL 8

Disk encryption is a critical layer of defense-in-depth for any Linux server handling sensitive data. LUKS (Linux Unified Key Setup) is the standard on-disk format for Linux disk encryption, and cryptsetup is the user-space tool that manages it. On RHEL 8, LUKS2 is the default format, bringing improved metadata handling, larger headers, and support for […]

Read more
How to Tune Kernel Parameters with sysctl on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Tune Kernel Parameters with sysctl on Debian 10

Introduction Deploying tune kernel parameters with sysctl on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before […]

Read more
How to Configure IPv6 Networking on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure IPv6 Networking on RHEL 8

IPv6 adoption has accelerated significantly as IPv4 address exhaustion becomes more acute, and most modern Linux distributions including RHEL 8 ship with full IPv6 support enabled by default. Configuring IPv6 on RHEL 8 requires working with nmcli for network interface configuration, firewalld for controlling IPv6 traffic including ICMPv6, and optionally adjusting service configurations to bind […]

Read more
How to Manage Users and Groups on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Manage Users and Groups on Debian 10

Introduction How to Manage Users and Groups on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 10. […]

Read more
How to Set Up a Ceph Storage Cluster on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up a Ceph Storage Cluster on RHEL 8

Ceph is a unified, distributed storage system that simultaneously provides object, block, and file storage on commodity hardware. It eliminates single points of failure through replication and erasure coding, and scales linearly by adding nodes. The cephadm tool, introduced in Ceph Octopus, simplifies cluster deployment by using containers (Podman on RHEL 8) to manage Ceph […]

Read more
CHAT